If you want 32GB of storage, you'd be better off buying 2 16GB iPhone 3Gs's rather than having to put up with "the bondage of having to swap out micro sdcards".
Since when was inserting an SD card into a device a hardship?
/s{I'll add the sarcasm tags in case anyone was wondering, I know the iPhone goes up to 32GB but if you're a 16Gb owner, you're SOL}